Hi, This is an anti aliasing issue that many rendering libraries have. I doubt there is much the QGIS developers can do. It is beyond the control of the QGIS developers and an upstream problem of the rendering in the qt-library.
The AGG rendering library solved this issue: see http://www.antigrain.com/screenshots/ and search for "adjacent polygons" in the text. I will forward this to the QGIS developers list. Andreas Am 30.07.2014 14:18, schrieb Jonathan Moules: > Hi Frank, > Thanks for confirming. Dissolving was the plan that the user was going > to end up trying. > For those interested, it's on the tracker as: > http://hub.qgis.org/issues/10984 > > Cheers, > Jonathan > > > On 30 July 2014 12:07, Frank Sokolic <[email protected] > <mailto:[email protected]>> wrote: > > Hi Jonathan, > > I've been struggling with this too. Even if you set Border Width to > zero the borders are faintly visible. I hack I've used occasionally > is to dissolve the polygons using whatever attribute you're > categorising by but this is a far from ideal solution. > > Frank. > ------------------------------------------------------------------------ > *From:* [email protected] > <mailto:[email protected]> > *Sent:* 2014/07/30 12:53:25 PM > *To:* [email protected] <mailto:[email protected]> > *Cc:* > *Subject:* RE: [Qgis-user] Making border lines disappear > ------------------------------------------------------------------------ > Hi List, > Using 2.4, how do you make borders on polygons invisible? Apparently > this worked fine in 2.2, but doesn't seem to be possible with 2.4. > > Using the standard Simple Fill. > > > Border style: No Pen: > Inline images 1 > > Border Style: Solid Line; Border: Dark green (second across from the > Black) (fill: Same dark green): > > Inline images 2 > If you look closely you'll see white lines. > > Anyone else seeing this? It was brought up by one of our more > observant users. > > Cheers, > Jonathan > > This transmission is intended for the named addressee(s) only and > may contain confidential, sensitive or personal information and > should be handled accordingly. Unless you are the named addressee > (or authorised to receive it for the addressee) you may not copy or > use it, or disclose it to anyone else. If you have received this > transmission in error please notify the sender immediately. All > email traffic sent to or from us, including without limitation all > GCSX traffic, may be subject to recording and/or monitoring in > accordance with relevant legislation. > _______________________________________________ > Qgis-user mailing list > [email protected] <mailto:[email protected]> > http://lists.osgeo.org/mailman/listinfo/qgis-user > > > > This transmission is intended for the named addressee(s) only and may > contain confidential, sensitive or personal information and should be > handled accordingly. Unless you are the named addressee (or authorised > to receive it for the addressee) you may not copy or use it, or disclose > it to anyone else. If you have received this transmission in error > please notify the sender immediately. All email traffic sent to or from > us, including without limitation all GCSX traffic, may be subject to > recording and/or monitoring in accordance with relevant legislation. > > > _______________________________________________ > Qgis-user mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/qgis-user > _______________________________________________ Qgis-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/qgis-user
